A gauge-invariant object in non-Abelian gauge theory

• Published in: Physics letters. B Vol. 634; no. 2-3; pp. 255 - 261
• Main Author: Chernodub, M.N.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 09.03.2006
• Subjects: 14.80.Hv; 11.15.Tk; 12.38.Aw

We propose a non-local definition of a gauge-invariant object in terms of the Wilson loop operator in a non-Abelian gauge theory. The trajectory of the object is a closed curve defined by an (untraced) Wilson loop which takes its value in the center of the color group. We show that definition shares...